Acoustic Foam The sound-absorbing damper for bass drums is designed to enhance low frequencies, absorbing unwanted mid and high frequencies, resulting in a focused, powerful tone. Once installed, it reduces the pitch of your bass drum in live or recording settings, offering punchier tones with less damping. It also improves bass drum pedal response by reducing vibration. Suitable for any bass drum size, it can be easily trimmed to fit. Features: • Controls resonance behavior • Dampens both batter and resonant heads • Fits all bass drum sizes • Pre-cut for easy customization • Flexible material for perfect fit • Material: Polyurethane foam • Elongation: 120% min. • Hardness: 120-160 N • Tensile strength: 90 kPa min. • Density: 30kg/m³ • Dimensions: 20x24x2.1 inches (500x600x54mm) • Color: Black graphite